Pollution ink

For those who haven’t heard of Air-Ink, it’s this nifty invention by Anirudh Sharma (co-founder of Graviky Labs), and it’s the world’s first ink created by collecting soot emitted from vehicles and purifying it into a carbon pigment that can be used to manufacture various types of inks and paints.

So basically, it’s air pollution that’s transformed into ink — and it’s a pretty cool way of contributing to saving the environment.